116544-21-9 1H-Pyrazino(2,3-c)(1,2,6)thiadiazin-4-amine, 6,7-bis(4-nitrophenyl)-, 2,2-dioxide 6,7-Bis(4-nitrophenyl)-1H-pyrazino(2,3-c)(1,2,6)thiadiazin-4-amine 2,2-dioxide BRN 5180659